There is no spark coming out of the coil?

Tiny
JAYNOVA02
  • MEMBER
  • 1994 CHEVROLET TRUCK
There is no spark coming out of the coil. So the plugs are not getting spark. And the truck wiil not start. Any answers?
Monday, January 18th, 2010 AT 1:52 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

First check to see if you have power to the coil. The coil is not getting power it will not produce spark.
You can check for power using a voltmeter.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

This could be also due to a faulty ignition control module.
And of course, you could have a faulty coil.

Take a look at this guide it covers on how to check the ignition system:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Friday, December 3rd, 2021 AT 8:23 PM

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